Zipper



FIG. 1 is a perspective view of the zipper of the present invention;

FIG. 2 is a frontal view of the zipper of FIG. 1;

FIG. 3 is a side view of the zipper of FIG. 2;

FIG. 4 is a top plan view of the zipper of FIG. 3; and,

FIG. 5 is a bottom plan view of the zipper shown in FIGS. 1 to 4 above. 

The ornamental design for a zipper, as shown and described. 